=The Scientific American= is a large first-class Weekly Newspaper, of sixteen pages, printed in the most beautiful style, _profusely Illustrated with Splendid Engravings_, representing the newest Inventions and the most recent Advances in the Arts and Sciences; including MECHANICS and ENGINEERING, STEAM ENGINEERING, RAILWAY, MINING, CIVIL, GAS and HYDRAULIC ENGINEERING; MILL-WORK, IRON, STEEL and METAL-WORK; CHEMISTRY and CHEMICAL PROCESSES; ELECTRICITY, LIGHT, HEAT, SOUND; TECHNOLOGY, PHOTOGRAPHY, PRINTING, NEW MACHINERY, NEW PROCESSES, NEW RECIPES; Improvements pertaining to Textile Industry--WEAVING, DYEING, COLORING; New Industrial Products--ANIMAL, VEGETABLE and MINERAL; New and Interesting Facts in AGRICULTURE, HORTICULTURE, THE HOME, HEALTH, MEDICAL PROGRESS, SOCIAL SCIENCE, NATURAL HISTORY, GEOLOGY, ASTRONOMY, etc. The most valuable practical papers, by eminent writers in all departments of Science, will be found in the =Scientific American=; the whole presented in popular language, free from technical terms, illustrated with engravings, and so arranged as to interest and inform all classes of readers, old and young. The =Scientific American= is promotive of knowledge and progress in every community where it circulates. It should have a place in every Family, Reading-Room, Library, College, or School. Terms, =$3.20= per year, =$1.60= half year, which includes prepayment of Postage. Discount to Clubs and Agents. Single copies ten cents. Sold by all Newsdealers. Remit by postal order to MUNN & CO., Publishers, 37 Park Row, New York. _PATENTS._ In connection with the =Scientific American=, Messrs. MUNN & CO. are Solicitors of American and Foreign Patents, and have the largest establishment in the world. Patents are obtained on the best terms. Models of New Inventions and Sketches examined, and advice free. A special notice is made in the =Scientific American= of all Inventions patented through this Agency, with the name and residence of the Patentee. Public attention is thus directed to the merits of the new patent, and sales or introduction often effected. Any person who has made a new discovery or invention can ascertain, free of charge, whether a patent can probably be obtained, by writing to the undersigned. Address for the Paper, or concerning Patents, =BRANCH OFFICE: Cor. F & 7th Sts, Washington, D. C.= MUNN & CO., 37 Park Row, New York. * * * * * FRANK LESLIE’S SUNDAY MAGAZINE. Rev. DR. DEEMS, Editor. Each Number has 128 Pages. It is profusely illustrated. The Cheapest Religious Reading. Non-Sectional--Non Sectarian. The Best Writers Employed. The Best Household Magazine.